import Map from '../src/ol/Map.js'; import View from '../src/ol/View.js'; import {defaults as defaultControls} from '../src/ol/control.js'; import TileLayer from '../src/ol/layer/Tile.js'; import OSM from '../src/ol/source/OSM.js'; const map = new Map({ layers: [ new TileLayer({ source: new OSM() }) ], target: 'map', controls: defaultControls({ attributionOptions: { collapsible: false } }), view: new View({ center: [0, 0], zoom: 2 }) }); document.getElementById('zoom-out').onclick = function() { const view = map.getView(); const zoom = view.getZoom(); view.setZoom(zoom - 1); }; document.getElementById('zoom-in').onclick = function() { const view = map.getView(); const zoom = view.getZoom(); view.setZoom(zoom + 1); };